diff options
| -rw-r--r-- | src/nvim/tui/tui.c | 187 |
1 files changed, 152 insertions, 35 deletions
diff --git a/src/nvim/tui/tui.c b/src/nvim/tui/tui.c index 8d240c91ae..736d50ee8b 100644 --- a/src/nvim/tui/tui.c +++ b/src/nvim/tui/tui.c @@ -53,6 +53,9 @@ typedef enum TermType { kTermiTerm, kTermKonsole, kTermRxvt, + kTermDTTerm, + kTermXTerm, + kTermTeraTerm, } TermType; typedef struct { @@ -79,7 +82,10 @@ typedef struct { UGrid grid; kvec_t(Rect) invalid_regions; int out_fd; - bool can_use_terminal_scroll; + bool scroll_region_is_full_screen; + bool can_change_scroll_region; + bool can_set_lr_margin; + bool can_set_left_right_margin; bool mouse_enabled; bool busy; cursorentry_T cursor_shapes[SHAPE_IDX_COUNT]; @@ -89,9 +95,12 @@ typedef struct { struct { int enable_mouse, disable_mouse; int enable_bracketed_paste, disable_bracketed_paste; + int enable_lr_margin, disable_lr_margin; int set_rgb_foreground, set_rgb_background; int set_cursor_color; int enable_focus_reporting, disable_focus_reporting; + int resize_screen; + int reset_scroll_region; } unibi_ext; } TUIData; @@ -143,7 +152,7 @@ UI *tui_start(void) static void terminfo_start(UI *ui) { TUIData *data = ui->data; - data->can_use_terminal_scroll = true; + data->scroll_region_is_full_screen = true; data->bufpos = 0; data->bufsize = sizeof(data->buf) - CNORM_COMMAND_MAX_SIZE; data->showing_mode = SHAPE_IDX_N; @@ -152,8 +161,12 @@ static void terminfo_start(UI *ui) data->unibi_ext.set_cursor_color = -1; data->unibi_ext.enable_bracketed_paste = -1; data->unibi_ext.disable_bracketed_paste = -1; + data->unibi_ext.enable_lr_margin = -1; + data->unibi_ext.disable_lr_margin = -1; data->unibi_ext.enable_focus_reporting = -1; data->unibi_ext.disable_focus_reporting = -1; + data->unibi_ext.resize_screen = -1; + data->unibi_ext.reset_scroll_region = -1; data->out_fd = 1; data->out_isatty = os_isatty(data->out_fd); // setup unibilium @@ -164,6 +177,13 @@ static void terminfo_start(UI *ui) data->ut = unibi_dummy(); } fix_terminfo(data); + data->can_change_scroll_region = + !!unibi_get_str(data->ut, unibi_change_scroll_region); + data->can_set_lr_margin = + !!unibi_get_str(data->ut, unibi_set_lr_margin); + data->can_set_left_right_margin = + !!unibi_get_str(data->ut, unibi_set_left_margin_parm) + && !!unibi_get_str(data->ut, unibi_set_right_margin_parm); // Set 't_Co' from the result of unibilium & fix_terminfo. t_colors = unibi_get_num(data->ut, unibi_max_colors); // Enter alternate screen and clear @@ -419,15 +439,83 @@ static void clear_region(UI *ui, int top, int bot, int left, int right) unibi_goto(ui, grid->row, grid->col); } +static bool can_use_scroll(UI * ui) +{ + TUIData *data = ui->data; + UGrid *grid = &data->grid; + + return data->scroll_region_is_full_screen + || (data->can_change_scroll_region + && ((grid->left == 0 && grid->right == ui->width - 1) + || data->can_set_lr_margin + || data->can_set_left_right_margin)); +} + +static void set_scroll_region(UI *ui) +{ + TUIData *data = ui->data; + UGrid *grid = &data->grid; + + data->params[0].i = grid->top; + data->params[1].i = grid->bot; + unibi_out(ui, unibi_change_scroll_region); + if (grid->left != 0 || grid->right != ui->width - 1) { + unibi_out(ui, data->unibi_ext.enable_lr_margin); + if (data->can_set_lr_margin) { + data->params[0].i = grid->left; + data->params[1].i = grid->right; + unibi_out(ui, unibi_set_lr_margin); + } else { + data->params[0].i = grid->left; + unibi_out(ui, unibi_set_left_margin_parm); + data->params[0].i = grid->right; + unibi_out(ui, unibi_set_right_margin_parm); + } + } + unibi_goto(ui, grid->row, grid->col); +} + +static void reset_scroll_region(UI *ui) +{ + TUIData *data = ui->data; + UGrid *grid = &data->grid; + + if (0 <= data->unibi_ext.reset_scroll_region) { + unibi_out(ui, data->unibi_ext.reset_scroll_region); + } else { + data->params[0].i = 0; + data->params[1].i = ui->height - 1; + unibi_out(ui, unibi_change_scroll_region); + } + if (grid->left != 0 || grid->right != ui->width - 1) { + if (data->can_set_lr_margin) { + data->params[0].i = 0; + data->params[1].i = ui->width - 1; + unibi_out(ui, unibi_set_lr_margin); + } else { + data->params[0].i = 0; + unibi_out(ui, unibi_set_left_margin_parm); + data->params[0].i = ui->width - 1; + unibi_out(ui, unibi_set_right_margin_parm); + } + unibi_out(ui, data->unibi_ext.disable_lr_margin); + } + unibi_goto(ui, grid->row, grid->col); +} + static void tui_resize(UI *ui, Integer width, Integer height) { TUIData *data = ui->data; ugrid_resize(&data->grid, (int)width, (int)height); if (!got_winch) { // Try to resize the terminal window. - char r[16]; // enough for 9999x9999 - snprintf(r, sizeof(r), "\x1b[8;%d;%dt", (int)height, (int)width); - out(ui, r, strlen(r)); + data->params[0].i = (int)height; + data->params[1].i = (int)width; + unibi_out(ui, data->unibi_ext.resize_screen); + // DECSLPP does not reset the scroll region. + if (data->scroll_region_is_full_screen) { + reset_scroll_region(ui); + } } else { // Already handled the SIGWINCH signal; avoid double-resize. got_winch = false; } @@ -614,10 +702,9 @@ static void tui_set_scroll_region(UI *ui, Integer top, Integer bot, TUIData *data = ui->data; ugrid_set_scroll_region(&data->grid, (int)top, (int)bot, (int)left, (int)right); - data->can_use_terminal_scroll = + data->scroll_region_is_full_screen = left == 0 && right == ui->width - 1 - && ((top == 0 && bot == ui->height - 1) - || unibi_get_str(data->ut, unibi_change_scroll_region)); + && top == 0 && bot == ui->height - 1; } static void tui_scroll(UI *ui, Integer count) @@ -627,31 +714,31 @@ static void tui_scroll(UI *ui, Integer count) int clear_top, clear_bot; ugrid_scroll(grid, (int)count, &clear_top, &clear_bot); - if (data->can_use_terminal_scroll) { + if (can_use_scroll(ui)) { + bool scroll_clears_to_current_colour = + unibi_get_bool(data->ut, unibi_back_color_erase); + // Change terminal scroll region and move cursor to the top - data->params[0].i = grid->top; - data->params[1].i = grid->bot; - unibi_out(ui, unibi_change_scroll_region); + if (!data->scroll_region_is_full_screen) { + set_scroll_region(ui); + } unibi_goto(ui, grid->top, grid->left); // also set default color attributes or some terminals can become funny - HlAttrs clear_attrs = EMPTY_ATTRS; - clear_attrs.foreground = grid->fg; - clear_attrs.background = grid->bg; - update_attrs(ui, clear_attrs); - } + if (scroll_clears_to_current_colour) { + HlAttrs clear_attrs = EMPTY_ATTRS; + clear_attrs.foreground = grid->fg; + clear_attrs.background = grid->bg; + update_attrs(ui, clear_attrs); + } - if (count > 0) { - if (data->can_use_terminal_scroll) { + if (count > 0) { if (count == 1) { unibi_out(ui, unibi_delete_line); } else { data->params[0].i = (int)count; unibi_out(ui, unibi_parm_delete_line); } - } - - } else { - if (data->can_use_terminal_scroll) { + } else { if (count == -1) { unibi_out(ui, unibi_insert_line); } else { @@ -659,20 +746,16 @@ static void tui_scroll(UI *ui, Integer count) unibi_out(ui, unibi_parm_insert_line); } } - } - if (data->can_use_terminal_scroll) { // Restore terminal scroll region and cursor - data->params[0].i = 0; - data->params[1].i = ui->height - 1; - unibi_out(ui, unibi_change_scroll_region); + if (!data->scroll_region_is_full_screen) { + reset_scroll_region(ui); + } unibi_goto(ui, grid->row, grid->col); - if (grid->bg != -1) { - // Update the cleared area of the terminal if its builtin scrolling - // facility was used and the background color is not the default. This is - // required because scrolling may leave wrong background in the cleared - // area. + if (!scroll_clears_to_current_colour) { + // This is required because scrolling will leave wrong background in the + // cleared area on non-bge terminals. clear_region(ui, clear_top, clear_bot, grid->left, grid->right); } } else { @@ -957,6 +1040,15 @@ static TermType detect_term(const char *term, const char *colorterm) if (colorterm && strstr(colorterm, "gnome-terminal")) { return kTermGnome; } + if (STARTS_WITH(term, "xterm")) { + return kTermXTerm; + } + if (STARTS_WITH(term, "dtterm")) { + return kTermDTTerm; + } + if (STARTS_WITH(term, "teraterm")) { + return kTermTeraTerm; + } return kTermUnknown; } @@ -977,14 +1069,14 @@ static void fix_terminfo(TUIData *data) unibi_set_if_empty(ut, unibi_flash_screen, "\x1b[?5h$<20/>\x1b[?5l"); unibi_set_if_empty(ut, unibi_enter_italics_mode, "\x1b[3m"); unibi_set_if_empty(ut, unibi_to_status_line, "\x1b]2"); - } else if (STARTS_WITH(term, "xterm")) { + } else if (data->term == kTermXTerm) { unibi_set_if_empty(ut, unibi_to_status_line, "\x1b]0;"); } else if (STARTS_WITH(term, "screen") || STARTS_WITH(term, "tmux")) { unibi_set_if_empty(ut, unibi_to_status_line, "\x1b_"); unibi_set_if_empty(ut, unibi_from_status_line, "\x1b\\"); } - if (STARTS_WITH(term, "xterm") || data->term == kTermRxvt) { + if (data->term == kTermXTerm || data->term == kTermRxvt) { const char *normal = unibi_get_str(ut, unibi_cursor_normal); if (!normal) { unibi_set_str(ut, unibi_cursor_normal, "\x1b[?25h"); @@ -998,11 +1090,21 @@ static void fix_terminfo(TUIData *data) unibi_set_if_empty(ut, unibi_cursor_invisible, "\x1b[?25l"); unibi_set_if_empty(ut, unibi_flash_screen, "\x1b[?5h$<100/>\x1b[?5l"); unibi_set_if_empty(ut, unibi_exit_attribute_mode, "\x1b(B\x1b[m"); + unibi_set_if_empty(ut, unibi_set_tb_margin, "\x1b[%i%p1%d;%p2%dr"); + unibi_set_if_empty(ut, unibi_set_lr_margin, "\x1b[%i%p1%d;%p2%ds"); + unibi_set_if_empty(ut, unibi_set_left_margin_parm, "\x1b[%i%p1%ds"); + unibi_set_if_empty(ut, unibi_set_right_margin_parm, "\x1b[%i;%p2%ds"); unibi_set_if_empty(ut, unibi_change_scroll_region, "\x1b[%i%p1%d;%p2%dr"); unibi_set_if_empty(ut, unibi_clear_screen, "\x1b[H\x1b[2J"); unibi_set_if_empty(ut, unibi_from_status_line, "\x07"); + unibi_set_bool(ut, unibi_back_color_erase, true); } + data->unibi_ext.enable_lr_margin = (int)unibi_add_ext_str(ut, NULL, + "\x1b[?69h"); + data->unibi_ext.disable_lr_margin = (int)unibi_add_ext_str(ut, NULL, + "\x1b[?69l"); + data->unibi_ext.enable_bracketed_paste = (int)unibi_add_ext_str(ut, NULL, "\x1b[?2004h"); data->unibi_ext.disable_bracketed_paste = (int)unibi_add_ext_str(ut, NULL, @@ -1029,6 +1131,21 @@ static void fix_terminfo(TUIData *data) unibi_set_str(ut, unibi_set_a_background, XTERM_SETAB); } + // Only define this capability for terminal types that we know understand it. + if (data->term == kTermDTTerm // originated this extension + || data->term == kTermXTerm // per xterm ctlseqs doc + || data->term == kTermKonsole // per commentary in VT102Emulation.cpp + || data->term == kTermTeraTerm // per "Supported Control Functions" doc + || data->term == kTermRxvt) { // per command.C + data->unibi_ext.resize_screen = (int)unibi_add_ext_str(ut, NULL, + "\x1b[8;%p1%d;%p2%dt"); + } + + if (data->term == kTermXTerm || data->term == kTermRxvt) { + data->unibi_ext.reset_scroll_region = (int)unibi_add_ext_str(ut, NULL, + "\x1b[r"); + } + end: // Fill some empty slots with common terminal strings if (data->term == kTermiTerm) { |